Mary-Kate and Ashley Olsen aren't returning for 'Full House' revival

Original stars Mary-Kateand Ashley Olsen, who shared the role of youngest child Michelle Tanner in the ABC sitcom, will not return to Netflix's upcoming Fuller House reboot.

"Although Ashley and Mary-Kate will not be a part of Fuller House, I know how much Full House has meant to them and they are still very much considered family," executive producer Robert L. Boyett said in a statement to THR.

The Olsen twins' participation in Fuller House has been in question ever since Netflix announced in April that it was reviving the beloved comedy for a 13-episode run in 2016.

A day after the pickup was made official Mary-Kate and Ashley claimed that they hadn't heard about plans for a reboot.

"We just found out about it today. I guess we're going to talk to the creators and see what's happening," Mary-Kate said in an interview at the time, later adding, "I'm shocked I haven't heard from John [Stamos]."

This prompted John Stamos to call "bulls***" on the Olsens' claim in a tweet that has since been deleted. In fact, Netflix's announcement specifically noted that discussions with other members of the Full House cast about were "ongoing."

Stamos took to Twitter on Friday reacting to the Olsens' decision not to return, first with a simple hashtag, "#heartbroken," followed by a longer message. "I understand they're in a different place and I wish them the best. I promise you will not be dissapointed with our reunion and spin off!!" he promised.

Fuller House will center on the recently-widowed D.J. Tanner-Fuller (Candace Cameron Bure), now a veterinarian and expecting her third child. To help care for her two young sons, younger sister and aspiring musician Stephanie Tanner (Jodie Sweetin) and their former neighbor Kimmy Gibbler (Andrea Barber) move in to her San Francisco home to help. Stamos will reprise his role as Uncle Jesse and Dave Coulier is set to return as Joey.

While the Olsens' absence on Fuller House will surely be felt, the fashion mavens haven't exactly pursued acting as of late. Mary-Kate's last acting credit came in the 2011 film Beastly, while Ashley's final on-camera credit came in 2010. They're better known now for their high-end luxury fashion lines, Elizabeth & James and The Row, as well as Olsenboye and StyleMint. They reportedly have a net worth of about $300 million.